ASTROSAT CZTI

Data Quality Report

Orbit 10144

Creation date: 2024-06-27T15:55:32.617270
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A03_116T01_9000001460_10144cztM0_level2.evt modeM0/AS1A03_116T01_9000001460_10144cztM0_level2_quad_clean.evt
Size (bytes)482,005,44095,040,000
Size459.7 MB 90.6 MB
Events in quadrant A3,159,863620,954
Events in quadrant B3,408,162627,635
Events in quadrant C3,046,655617,294
Events in quadrant D4,556,054573,335

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133956
B0140961
C0131691
D0175211

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6286620.986319%
B6288711.129135%
C6288470.747455%
D62883104.930025%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7483 6288 2 2 0.03% 0.03%
B 7483 6288 10 10 0.13% 0.16%
C 7483 6288 0 0 0.00% 0.00%
D 7483 6288 254 254 3.39% 4.04%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 15 174 10237 57.9 815 800 163.0
A 8 15 9389 52.7 815 800 163.0
A 0 226 7611 41.79 815 800 163.0
B 0 214 129349 836.01 809 792 153.8
B 4 81 31724 201.15 809 792 153.8
B 4 239 30107 190.64 809 792 153.8
C 13 61 5851 28.19 781 788 179.6
C 3 202 1959 6.52 781 788 179.6
C -1 -1 -1 -1.0 781 788 179.6
D 1 52 1082254 5566.97 766 747 194.3
D 8 195 215297 1104.38 766 747 194.3
D 2 33 152390 780.57 766 747 194.3

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter